Abstract:
We report the results of a search for large spatial extra dimensions in events with two isolated muons collected in proton proton collisions at $\sqrt{s} =$ 8 TeV with the CMS detector at the LHC. The dimuon invariant mass spectrum is measured with an integrated luminosity of 20.6 fb$^{-1}$. The standard model expectation is found to be consistent with the measurement. Limits of up to 4.49 TeV at 95% C.L. are set on the model parameter $M_{s}$, depending on the number of extra dimensions and the validity range of the theory.
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